Die for forging blacksmithsj tongs



(No Model.)

F. T. SMITH.

DIE FOR PORGING BLAGKSMITHS' TONGS.

No. 326,797. Patented Sept. 22, 1885.

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UNITED STATES FREDERICK T. SMITH, OF PLANTSVILLE, CONNECTICUT.

DIE FOR FORGING BLACKSMITHS TONGS.

SPECIFICATION forming part of Letters Patent No. 326,797, datedSeptember 22, 1885.

Application filed July 27, 1885.

To all whom it may concern.-

Be it known that I, FREDERICK T. SMITH, of Plantsville, in the county ofHartford and State of Connecticut, have invented a new Improvement inDies for Forging Blacksmiths Tongs; and I do hereby declare thefollowing, when taken in connection with accompanying drawings and theletters of reference marked thereon, tobe a full, clear, and exactdescription of the same, and which said drawings constitute part of thisspecification, and represent, in-

Figure 1, a perspective view of the upper part of the die inverted; Fig.2, aperspective View of the lower part of the die; Fig. 3, the blank ascut from the bar; Figs. 4, 5, 6, 7, and 8, perspective viewsillustrating the several operations in the formation of one part of apair of tongs.

This invention relates to the construction of dies for forging andshaping the parts of blacksmiths tongs. These tongs are made from twoparts hinged together, the two parts crossing each other at the hinge,one end forming the jaws and the other the tails. The two parts arealike in shape.

The object of the invention is to produce these parts cheaply and ofuniform shape; and it consistsin the dies constructed as hereinafterdescribed.

As represented, the several dies or series of dies are formed uponasingle block, A representing the lower part and B the upper part. Theparts are formed from blanks cut from a flat rod, say as seen in Fig. 3.The first operation is to break down the bar at the junction of thejawand tail. To do this the lower die is constructed with a rib, O,presenting a rounded surface upward. Upon this the hot blank is placed,and the flat surface of the other part of the die brought thereon willforce the metal laterally outwardsay, to the left, as seen in Fig. 4.Then to flatten the jaw end of the blank it is next set over a shoulder, D, on the lower die, and on the upper die is an inclinedprojection, E, corresponding to the shoulder D. The blank is laid uponthe shoulder D so as to bring the portion of the jaw previously actedupon upon that shoulder, then the part B brought down thereon. The

(No model.)

inclined surface E flattens the end, as seen in Fig. 5, giving thegeneral outline to the jaw portion. Next, to form the shoulder at thejunction of the jaw and tail, the blank is laid upon the flat surface Fof the part A, below the general surface of the die, equal to thethickness of the tail to be produced. The blank, Fig. 5, is laidflatwise upon this surface F, with thejaw portion extendingbeyond. Thenthe flat surface of the part B brought thereon will bring the shoulderto nearly a right angle, as seen in Fig. 6. At this point the tail ofthejaw is drawn, using the flat surface F for the thickness of the tail,and a similar surface, G, for the width of the tailthat is, the surfaceG is below the surface F the distance that the width of the tail isgreater than its thickness, and so that passing the tail portion of theblank over the surface G edgewise it is drawn to the required width,then upon the surface F to the required thickness, as seen in Fig. 7.Then to give the blank the required bend it is placed over a roundedsurface, H, in the lower die, and beneath a corresponding cavity, l, inthe upper die, and so that the two brought together will give the propershape at the junction between the tail and thejaw, as seen in Fig. 8.

Adjacent to the part H is a flat surface, L, which may be used after thebend to flatten the tail portion.

K is a cavity in the lower die corresponding to the jaw, a part of thetail, and the junction of the tail with the jaw. After the blank hasbeen substantially shaped, as before mentioned, it is placed in thiscavity and there struck by a corresponding flat surface on the die B tobring the blank to the required shape. Provision is made for the escapeof surplus metal in the form of a fin, which is subsequently trimmed inthe usual manner of trimming the fin from forgings.

By this die or series of dies I am enabled to produce each part of thetongs complete at a single heat; but more than one heat may be taken, ifpreferred.

For convenience a cutter, M, is arranged at one end of the part A to cutoff any surplus metal necessary to bring it to the required length.

The herein-described die for forging b1ack-' smiths tongs, consisting ofthe break-down rib G, the shoulder D, the recessed flat surfaces 5 F G,cavity H, and the finishing-cavity K,

combined with the second part of the die having the inclined projectionE and the cavity I on its working-face corresponding, respectively, tothe portions D and H of the other die, substantially as described.

FREDERICK T. SMITH. \Vitnesscs:

WILLIAM H. WITHAM, WALTER C. ATWATER.

